Prepaid
Top Pick: NomadPrepaid SIM Card & eSIM for Thailand (2026 Guide)
A prepaid travel eSIM is a digital SIM card that installs on your phone via QR code. It provides mobile data in Thailand without a physical SIM card, passport scan, or airport counter visit. Plans start from $0.29/GB.
- 8 Plans
- 3 Networks
- 5G
- Updated June 2026
Key Facts
- Cheapest eSIM
- $0.29/GB
- Network
- AIS
- Speed
- 5G
- Plans available
- 8
- Main airport
- Suvarnabhumi (BKK) / Don Mueang (DMK)
- Airport SIM cost
- $8-23 for unlimited data / 7-15 days
- ID required
- Yes — passport
As of June 2026, Thailand has 8 prepaid eSIM plans across 3 networks at 5G speeds.
The cheapest rate is $0.29/GB via Nomad on AIS.
Airport SIM counters at Suvarnabhumi (BKK) / Don Mueang (DMK) charge $8-23 for unlimited data / 7-15 days for a comparable plan.
As of June 2026, a prepaid eSIM for Thailand costs from $3.49 for 1GB with 5G speeds on AIS, DTAC and True Move networks.
A prepaid eSIM for Thailand starts at $3.49 for 1GB, bought from your couch before the trip and working as you step off the plane. SIM counters at Suvarnabhumi (BKK) / Don Mueang (DMK) are not always in the arrivals terminal — some are in a separate wing or departures level. No detour through the terminal, no $8-23 for unlimited data / 7-15 days markup.
Airport SIM counters in Thailand price plans in THB. Without local cash, you may leave the counter empty-handed or pay a bad exchange rate on top of the tourist markup. A prepaid eSIM is priced in USD and charged to your home card before departure. AIS, DTAC and True Move carry the same 5G signal — no currency conversion needed. 5G available in Bangkok, Chiang Mai, Pattaya, Phuket; rural areas 4G only Average download speeds in Thailand reach 130 Mbps.
Local prepaid SIMs at city phone shops in Thailand cost $5-15 for 10-30GB / 7-30 days. A prepaid eSIM at $15.99 for 20GB is a direct alternative — no shop visit, no wait. Whether you search for eSIM, e-SIM, or e SIM plans for Thailand, the product is the same: a digital profile that installs on your phone without a physical card. Traveling during Nov-Feb or Jul-Aug? Buy your eSIM at least a week before departure — airport SIM counters run longer queues and sometimes stock out during high season. Local currency in Thailand is the THB (฿). Airport SIM counters often price plans in local currency — a prepaid eSIM is priced in USD with no conversion at point of purchase.
Compared
Thailand eSIM plans compared
All providers route through local carriers in Thailand. Sorted by overall rating.
We earn a commission on some links. It never changes our rankings or the price you pay.
| Provider | Rating | From / GB |
|---|---|---|
| 4.4 / 5 | from $3.00/GB | |
 AiraloBest Overall | 4.8 / 5 | from $4.50/GB |
| 4.5 / 5 | from $3.99/GB | |
 HolaflyBest Unlimited | 4.6 / 5 | from $2.99/day |
Prices verified June 2026. Updated monthly from provider websites.
Our pick for Thailand: Nomad
For Thailand in 2026, Nomad scores 4.4/5 with plans from $3.00/GB on AIS's 5G network. Best per-GB pricing for budget travelers.
Comparison based on 4 providers tested in June 2026. Prices verified against official provider websites. See our methodology.
The Scenario
What the first 30 minutes in Thailand look like
You land at Suvarnabhumi (BKK) / Don Mueang (DMK) with a dead phone and the wrong power adapter — Thailand uses Type A/B/C/O outlets, and your charger does not fit. The SIM counter is open, but a SIM card does not help a phone at 0%. You spend 20 minutes finding an electronics shop in the terminal for an adapter. A prepaid eSIM installed before departure activates the moment you find a charge point and power up. PrepaidTraveleSIM at $3.49 for 1GB on AIS — no counter visit needed, just a power outlet.
Four Ways to Buy
Budget prepaid data for Thailand trips
Compare airport counters, city shops, online delivery, and instant eSIM activation.
Airport SIM counter
10-30 min waitThailand airport SIM counters require a passport at point of purchase. Most counters close between 10 PM and midnight. Buy a prepaid eSIM before you fly if your flight arrives late.
City phone shop
ID requiredPhone shops in Thailand stock local prepaid plans at city rates. Stock and English help vary by neighborhood — tourist areas are easier, outlying districts less so. ID required at all.
Online pre-order
Plan aheadHotel-delivery SIMs sit between the airport counter and a prepaid eSIM in terms of effort. They avoid the arrivals queue but need a week of lead time and a confirmed delivery address. For most short trips, a prepaid eSIM is faster and simpler.
Instant eSIM (our pick)
5 min setupBuy from Nomad, scan the QR code over WiFi, and connect in 5 minutes. No ID required. Set up at home before you fly — arrive connected.
Pricing
Per-GB rates for Thailand prepaid plans
Thailand prepaid eSIM plans: 1GB at $3.49 ($3.49/GB), 3GB at $4.99 ($1.66/GB), 5GB at $6.99 ($1.40/GB), 10GB at $9.97 ($1/GB), 20GB at $15.99 ($0.80/GB).
At the airport, that works out to roughly $2.67/GB (eSIM starting price: $3.49 — a savings of 56%). The best prepaid eSIM rate for Thailand is $0.80/GB on the 20GB plan. Local prepaid SIMs at city phone shops run $5-15 for 10-30GB / 7-30 days — sometimes requiring a passport and an in-person stop. A prepaid eSIM at $15.99 for 20GB ($0.80/GB) installs remotely. Unlimited daily data starts at $3.35 for 1 day — $3.35/day (2GB at full speed per day).
| Data | Price (USD) | Price per GB |
|---|---|---|
| 1GB | $3.49 | $3.49 |
| 3GB | $4.99 | $1.66 |
| 5GB | $6.99 | $1.40 |
| 10GB | $9.97 | $1.00 |
| 20GBBest value | $15.99 | $0.80 |
| Unlimited / day | $3.49/day | — |
Thailand consistently offers the lowest eSIM prices in Southeast Asia, driven by fierce three-way carrier competition.
Cost Breakdown
Thailand data savings: eSIM vs airport SIM
The average trip to Thailand lasts 9 days. The 5GB eSIM plan at $6.99 matches that duration — no leftover data wasted, no mid-trip top-up needed. Airport SIM counters at $8-23 for unlimited data / 7-15 days do not size plans to trip length; they sell what is behind the counter. For trips past two weeks, the 20GB plan at $15.99 avoids a mid-trip top-up.
| Trip | eSIM Plan | Airport SIM |
|---|---|---|
| 3 days | $3.49 (1GB) | $8-23 for unlimited data / 7-15 days |
| 7 days | $6.99 (5GB) | $8-23 for unlimited data / 7-15 days |
| 14 days | $15.99 (20GB) | $8-23 for unlimited data / 7-15 days |
Roaming vs eSIM
Thailand roaming charges vs eSIM pricing
Why a prepaid eSIM beats carrier roaming in Thailand
Telstra Travel Pass costs AUD $10/day. Optus charges AUD $5-10/day depending on the destination tier. A 10-day trip to Thailand racks up AUD $50-$100 on top of your home plan before you send a single message. A prepaid eSIM at $3.49 for 1GB from Nomad covers the entire trip at a known price. No daily charges, no post-trip invoice shock.
Coverage
Thailand mobile network breakdown
A prepaid eSIM with multi-carrier access in Thailand automatically favors the strongest signal among AIS, DTAC and True Move. Airport SIM counters sell plans tied to a single carrier, and once activated, that physical SIM stays on AIS regardless of signal strength. The eSIM advantage grows when you move between regions.
The best-value prepaid eSIM plan from Nomad is 20GB at $15.99 ($0.80/GB) — no airport visit, no queue, no passport copy required.
Available Networks
- RatingAIS5G
- DTAC5G
- True Move4G
5G access in Thailand
5G coverage in Thailand is limited to select areas in the largest cities. Most of your trip will run on 4G/LTE, which handles maps, messaging, and video calls without issues. 5G access is a bonus when available, not a requirement. 5G available in Bangkok, Chiang Mai, Pattaya, Phuket; rural areas 4G only
AIS maintained consistent 4G signal across islands including Koh Samui and Koh Phangan. True Move H dropped in remote Koh Lipe areas.
Local Context
Thailand connectivity: local facts
Before buying your Thailand prepaid eSIM, here are the practical details:
Wait times at Suvarnabhumi (BKK) / Don Mueang (DMK) SIM counters run 5-10 min; counters open 24 hours. A prepaid eSIM activated before your flight skips this queue entirely. Buying a SIM in Thailand: Passport required for local SIM purchase; biometric selfie verification at carrier stores. A travel eSIM purchased before you depart bypasses these in-country requirements. Free WiFi in most cafes, co-working spaces, and 7-Elevens; Thailand ranks among top global WiFi speeds at 261 Mbps average
Quick Reference
What to know before landing in Thailand
- Emergency
- 191/1669
- Power Socket
- Type A/B/C/O
- Time Zone
- ICT (UTC+7)
- Currency
- THB (฿)
- eSIM Speed
- 5G
WiFi
How reliable is WiFi in Thailand
Traveling with a laptop, phone, and tablet in Thailand? Hotel WiFi often limits you to two devices per room. Tethering your prepaid eSIM through your phone's hotspot connects all three on a single data plan — no device-limit restrictions.
5G cellular speeds on AIS handle multi-device tethering without the bottleneck that hotel WiFi creates during evening peak hours.
Timing
Thailand seasonal travel and eSIM timing
Summer travelers to Thailand tend toward families and group trips — more devices per booking, longer SIM counter waits at Suvarnabhumi (BKK) / Don Mueang (DMK). Winter visitors lean toward solo and couples travel with shorter queues but limited counter hours.
A prepaid eSIM at $3.49 for 1GB fits both profiles. Buy before departure, install at home, and avoid seasonal queue dynamics entirely.
Data Tips
Data budget for a Thailand trip
Most travelers to Thailand need 3-5 GB for a one-week trip. This covers maps, messaging, social media browsing, and occasional photo sharing. The smallest plan available starts at $3.49 for 1GB.
- 0.3 GBOffline maps onlyDownload Google Maps or Maps.me for Thailand over home WiFi. 0.3 GB on AIS covers the gaps: live traffic, transit times, and the occasional search. Prices are in USD — no THB conversion at purchase.
- 0.7 GBMaps + messagingOffline maps handle navigation. 0.7 GB on AIS adds WhatsApp, email, and real-time transit info in Thailand without worrying about data. Thailand runs on ICT (UTC+7) — jet-lagged travelers tend to use more data in the first 48 hours while adjusting.
- 1.5 GBFull navigationLive navigation all day in Thailand without offline maps uses about 100 MB/day. 1.5 GB on AIS covers a full week of turn-by-turn directions plus messaging.
- 3+ GBNavigator + streamerAll-day navigation plus podcasts during long drives through Thailand. 3+ GB on AIS handles both without switching to offline mode.
Need internet without voice? See our data-only plan guide.
Device Check
Does your phone support a Thailand eSIM
Most phones from 2020 onward support two active SIMs simultaneously — your home SIM for calls and a prepaid eSIM for data in Thailand. AIS and True Move H both accept eSIM connections. Compatible devices: iPhone XS (2018) and newer, Samsung Galaxy S20 (2020) and newer, Google Pixel 3 (2018) and newer. 5G available in Bangkok, Chiang Mai, Pattaya, Phuket; rural areas 4G only 5G-capable devices (iPhone 12+, Galaxy S21+, Pixel 5+) get faster speeds on AIS's 5G network. Verify carrier-unlock status before buying: Settings → General → About on iPhone, Settings → Connections → SIM Manager on Android.
Pre-Flight Checklist
What to do before your Thailand trip
Do this at home — not in the airport arrivals hall.
- 01
Verify eSIM compatibility and unlock
iPhone XR+, Samsung Galaxy S20+, Pixel 3+ are compatible. Carrier-unlock is required. If your trip to Thailand includes remote trekking or island-hopping, confirm eSIM support now — there are no phone shops to troubleshoot with when you are off-grid.
- 02
Buy a plan with enough data for offline downloads
Plans start at $3.49 for 1GB. Before departure, download offline maps for all Thailand regions on your itinerary. Save translation packs, trail maps, and emergency contact info to your device. Remote areas have limited coverage even on AIS — pre-loaded content reduces your data dependency.
- 03
Install eSIM and download essentials over home WiFi
Scan the QR code at home. Then download offline Google Maps for your entire Thailand route, a translation pack for the local language, and any trail or park maps you need. This single WiFi session saves GB of mobile data once you are in the field.
- 04
Configure dual-SIM and emergency contacts
Set the Thailand eSIM as your data line and keep your home SIM active for calls. Save local emergency numbers (191/1669 in Thailand) and your embassy's number in your contacts. In remote areas, voice calls may work when data does not.
- 05
Activate on arrival and test before going off-grid
Enable the eSIM at Suvarnabhumi (BKK) / Don Mueang (DMK) and test data before heading to remote areas. AIS handles registration in 2-3 minutes. Confirm maps load, messaging works, and your VPN connects. Once you leave urban coverage, you will rely on what you downloaded and cached.
Step by Step
Physical SIM vs digital setup for Thailand
You have a 2-hour layover at Suvarnabhumi (BKK) / Don Mueang (DMK) between flights. The SIM counter is past security in the arrivals hall — you cannot reach it without leaving the transit zone. Buying a SIM is impossible without clearing immigration, and you do not have a visa for that. A prepaid eSIM installed before your first flight gives you data through the layover. Check departure boards, message your next pickup, and find the connecting gate without leaving your seat.
Airport SIM — 7 steps (~45 min)
- Land and collect bags
- Locate the SIM counter (not always signposted)
- Join the queue
- Show passport for registration
- Choose a plan from a rate card
- Pay (cash only at some counters)
- Wait for SIM activation
Prepaid eSIM — 3 steps (~5 min)
- Buy online before departure (2 min)
- Scan QR code over home WiFi (1 min)
- Enable on landing — connects automatically
Which Provider
Thailand eSIM: provider fit by traveler type
Most visitors to Thailand stay around 9 days — long enough to need a full data plan but not so long that a local SIM pays off. Airalo and Nomad both offer plans that match that window without requiring you to buy more than you need.
Going longer or hitting multiple countries? Airalo covers 200+ destinations on one account, so you do not need a new plan at the next border. Heavy data users staying past 9 days should look at Holafly unlimited rather than topping up a fixed plan mid-trip.
Regional Plans
Covering multiple countries from Thailand
A single-country eSIM covers Thailand on 5G networks. If your route passes through Singapore, Indonesia and Myanmar, a regional Southeast Asia bundle keeps you connected across borders without buying separate plans.
Regional bundles share a single data pool across countries. No per-border activation, no new QR code, no manual network switching. Single-country plans start at $3.49 for 1GB.
Related destinations: Singapore, Indonesia, Myanmar, Malaysia
Compare providers side by side: Airalo vs Holafly · Airalo vs Nomad · Holafly vs Saily · Saily vs Nomad · All providers
The Honest Call
Physical SIM vs eSIM in Thailand
Choose an eSIM if you...
- Flight lands after 9 PM and airport counters close early
- One-week or shorter trip where time in lines is wasted vacation time
- Traveling with family — each person gets their own eSIM in minutes
- Working remotely and need data from the moment you clear customs
- Phone is eSIM-capable and carrier-unlocked
Choose a local SIM if you...
- Relocating or staying 3+ months — local plans are cheaper for long stays
- Need to receive SMS verification codes on a Thailand number
- Phone is not eSIM-capable or is carrier-locked
- In a rural area where a local carrier with dominant coverage sells physical SIMs at market stalls
- Travelling with someone who needs a SIM for their non-eSIM device
Compare alternatives: pocket WiFi vs eSIM | prepaid vs postpaid
Avoid These
Prepaid data mistakes to avoid in Thailand
Underestimating daily data use.
Travelers to Thailand average 1.8GB per day when using maps, messaging, and occasional video. Factor that into your plan choice before buying the smallest option.
Not knowing whether hotspot is included.
Some prepaid eSIM plans count hotspot data against your total at full speed; others throttle tethering or block it entirely. If you plan to share the connection with a laptop, confirm hotspot is supported before buying.
Ignoring fair-use throttling on unlimited plans.
Unlimited plans in Thailand often throttle speeds after a daily threshold — commonly 1-3 GB at full speed, then slower data for the rest of the day. This is fine for maps and messaging but affects video streaming. Check the plan's fair-use policy before buying.
Forgetting offline maps before departure.
Navigation is one of the heaviest data uses for travelers. Download your Thailand cities in Google Maps or Maps.me before you leave home. Offline maps save hundreds of megabytes per day and work when signal is patchy.
Privacy
Data privacy tips for Thailand travelers
No VPN restrictions apply in Thailand — connect freely to any provider. The main reason to use a VPN while traveling is public WiFi security: hotel and cafe networks share bandwidth and traffic with every connected guest.
Saily, backed by NordVPN, offers eSIM data with built-in VPN. If you access sensitive accounts on the road, the VPN layer is worth the marginal overhead. Your prepaid eSIM on 5G handles the cellular side.
Learn more: eSIM security and privacy guide
Troubleshooting
Thailand eSIM troubleshooting checklist
QR code won't scan
Two common causes: a carrier-locked phone that rejects foreign profiles, or a full eSIM storage. iPhones store up to 8 profiles but can only run 2 at once. Use the manual activation code in your order email — it contains the same profile data as the QR image.
Plan started counting down too early
Installation does not start the clock — but a network connection does. Switch the Thailand eSIM off after scanning the QR code and leave it off until you land. Enable it once you are on the ground and past customs.
Cannot connect to corporate VPN
Corporate VPNs often use strict protocols that conflict with mobile carrier settings. On AIS in Thailand, try switching from IKEv2 to OpenVPN or WireGuard. Contact your IT team for alternate server addresses if the primary fails. Test VPN connectivity over home WiFi before departure to confirm your credentials work — troubleshooting in a foreign time zone adds friction.
Phone uses WiFi instead of eSIM data
Your phone may auto-connect to a weak WiFi network and ignore the eSIM data connection. Turn off WiFi when you need reliable mobile data in Thailand. On iPhone, use Settings → WiFi → toggle off. On Android, swipe down and disable WiFi. AIS's 5G signal is often faster than cafe or hotel WiFi.
The Bottom Line
Prepaid eSIM for Thailand: worth buying
Buying a SIM in Thailand means handing over your passport at the counter. A prepaid eSIM skips that entirely — no registration, no photocopy, no passport at point of purchase. Nomad activates on AIS's 5G network the moment you land. At $0.29/GB, it costs less than the airport option and takes under 5 minutes to set up at home. If traveling during Nov-Feb, buy early — airport counters run out and online plans sell faster.
Starting at $0.29/GB, a prepaid plan for Thailand is one of the easiest upgrades for any trip. See the full destinations list or explore more Southeast Asia destinations, or read how to activate your eSIM before you fly.
Thailand's AIS network leads in 5G deployment across Bangkok, Phuket, Chiang Mai, and the island chains — the broadest tourist-zone coverage of any Thai carrier.
How we test and score: editorial policy · corrections log
FAQ
FAQ: prepaid eSIM for Thailand
Can I buy a SIM card at Suvarnabhumi (BKK) / Don Mueang (DMK) airport?
Yes — Suvarnabhumi (BKK) / Don Mueang (DMK) has SIM counters from AIS and True Move H and DTAC. Airport SIMs from AIS and True Move H and DTAC cost around $8-23 for unlimited data / 7-15 days. Queue wait times average 5-10 min; counters open 24 hours. The counter is in the arrivals hall after customs. A prepaid eSIM is a better option: purchase before departure, scan the QR code on the plane, and connect the moment you land for $3.49 (1GB). No waiting in queues or dealing with staff language barriers.
Do I need a passport to buy a SIM in Thailand?
Yes. Passport required for local SIM purchase; biometric selfie verification at carrier stores This applies to physical SIM cards purchased at airports and phone shops. A prepaid eSIM purchased online from an international provider activates via QR code — no in-person passport scan required. You complete the process from your phone before departure. This is the main practical advantage of eSIM for Thailand: it bypasses the local ID registration requirement entirely.
Is an airport SIM or eSIM cheaper for Thailand?
A prepaid eSIM saves money on every front. Airport SIMs at Suvarnabhumi (BKK) / Don Mueang (DMK) run $8-23 for unlimited data / 7-15 days (plus 5-10 min; counters open 24 hours waiting at the counter), and that price often includes less data than a comparable eSIM plan. A prepaid eSIM starts at $3.49 for 1GB — the 20GB plan at $15.99 drops to $0.80/GB. Factor in the 15-25 minutes saved by not standing in an airport queue, and the eSIM wins on both cost and time for Thailand.
Can I install my Thailand eSIM before I travel?
Yes. You can scan the QR code over home WiFi up to 30 days before your flight. Open your phone's eSIM settings, scan the code, and leave the plan inactive until you land in Thailand. The night before departure is the sweet spot — your home network is fast, support is reachable if anything goes wrong, and you board with everything ready. Validity starts from first use in Thailand, not the purchase date. Plans start at $3.49.
Which phones support eSIM for Thailand?
Apple removed the SIM tray from iPhone 14 US models, and Samsung followed on select Galaxy models. The industry is moving toward eSIM-only devices. Current compatibility: iPhone XS (2018)+, Samsung Galaxy S20 (2020)+, Google Pixel 3 (2018)+, and most 2020+ flagships. The critical check is carrier-unlock status — not the model. A carrier-locked iPhone 16 cannot use a Thailand eSIM. Verify in Settings > General > About (look for "No SIM restrictions") before purchasing any travel plan.
Can I use my prepaid eSIM as a hotspot in Thailand?
Yes — tethering works on most Thailand eSIM plans. Battery drain is the hidden cost: running a hotspot cuts your phone's battery life roughly in half. Carry a power bank if you plan to tether for more than an hour. Data consumption also doubles or triples compared to phone-only use. A 1-hour video call over hotspot uses 1-2GB. Airalo allows hotspot on most plans; Holafly caps daily hotspot at 1GB. Check provider terms before buying a plan for Thailand.
What happens when my prepaid eSIM data runs out in Thailand?
Data stops. No overages, no hidden fees. Budget travelers visiting Thailand can use this to their advantage: buy the smallest plan as a test run. If coverage and speed meet your needs, top up with a larger plan through the app over WiFi. This approach costs slightly more per GB than buying large upfront, but it limits risk if the provider's Thailand coverage disappoints. Top-ups take about 2 minutes and do not require a new QR code scan.
Can I keep my home phone number while using a Thailand eSIM?
Yes — and keeping your home SIM active is important for SMS verification codes. Banks, email providers, and two-factor authentication systems send codes to your home number. With both SIMs active, those codes arrive normally in Thailand. Route all data through the travel eSIM and leave your home SIM on for calls and SMS only. Your home carrier charges standard rates for incoming SMS (usually free). No app reconfiguration needed.
How far in advance should I buy my Thailand prepaid eSIM?
Buying at the gate works if you have WiFi access — most airports offer free terminal WiFi. The install takes under 5 minutes once the QR code arrives in your email. The risk with last-minute purchasing is support availability: if the QR code does not scan or the provider's app has a login issue, you have minutes, not hours, to fix it. One to two days before departure removes that risk entirely. Plan validity starts from first use in Thailand, so buying early is never wasted. Plans start at $3.49.
Does eSIM work without WiFi after installation in Thailand?
Yes. After installation, the eSIM connects to AIS's cellular network in Thailand without WiFi. The landing sequence is simple: turn off airplane mode, make sure the Thailand eSIM is toggled on in your cellular settings, and wait 30-60 seconds for the phone to find a local tower. No WiFi needed at the airport, on the tarmac, or anywhere else. WiFi is only required for the one-time QR code scan during initial setup at home.
Can I have two eSIMs on my phone at the same time for Thailand?
iPhones store up to 8 eSIM profiles at once, with 2 active simultaneously (iPhone 13 and newer). You can install your Thailand travel eSIM alongside your home eSIM and toggle between them in Settings > Cellular. No need to delete one to add another. The iPhone 14 US models are eSIM-only, so dual eSIM is the standard setup for those devices. Switching the active data line takes about 5 seconds — tap the profile name and confirm.
How do I check if my phone is unlocked for eSIM in Thailand?
Go to Settings > General > About (iPhone) or Settings > Connections > SIM Manager (Samsung). If you see an option to add an eSIM or cellular plan, your phone supports it. To check carrier unlock status, insert a SIM from a different carrier — if it connects, your phone is unlocked. You can also call your carrier and ask directly. A locked phone will reject any foreign eSIM profile, including plans for Thailand.
Thailand data: sorted before departure
Set it up tonight. Land with data already running. From $0.29/GB on AIS.